28284853 has 2 divisors, whose sum is σ = 28284854. Its totient is φ = 28284852.

The previous prime is 28284847. The next prime is 28284857. The reversal of 28284853 is 35848282.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26801329 + 1483524 = 5177^2 + 1218^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28284853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28284857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14142426 + 14142427.

It is an arithmetic number, because the mean of its divisors is an integer number (14142427).

Almost surely, 2^28284853 is an apocalyptic number.

It is an amenable number.

28284853 is a deficient number, since it is larger than the sum of its proper divisors (1).

28284853 is an equidigital number, since it uses as much as digits as its factorization.

28284853 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 122880, while the sum is 40.

The square root of 28284853 is about 5318.3505901736. The cubic root of 28284853 is about 304.6851646878.

The spelling of 28284853 in words is "twenty-eight million, two hundred eighty-four thousand, eight hundred fifty-three".